<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
    <style>
        /* 移动端对超链接点击时加的背景颜色设置为透明色 */
        
        a {
            -webkit-tap-highlight-color: transparent;
        }
        /* ios移动端浏览器中加上以下属性才可以对按钮和输入框自定义样式 */
        
        input {
            -webkit-appearance: none;
        }
        /* 图片和超链接上禁用长按页面时弹出菜单 */
        
        img,
        a {
            -webkit-touch-callout: none;
        }
    </style>
    <title>meta视口标签</title>
</head>

<body>
    meta name="viewport" content="width=device-width, initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no"
    <a href="#">移动端去掉点击时的背景颜色</a>
    <input type="button" value="按钮">
</body>

</html>